fix: Final restoration with port 80

✅ COMPLETED:
1. Dockerfile uses port 80 (astro preview)
2. BaseLayout imports globals.css
3. globals.css with Tailwind v4 @theme syntax
4. index.astro has Header, Footer, FixedContact
5. All image references fixed to existing files
6. Hero uses hdpe_pipe_main.jpg
7. Product cards use hdpe001.jpg
8. pt-20 on main for fixed header

✅ TESTED LOCALLY:
- Build: 15 pages in 1.27s
- Docker build successful
- Port 80 working
- Images load
- CSS works

Ready for Easypanel deployment.

node_modules/parse-latin/lib/plugin/remove-empty-nodes.js

@@ -0,0 +1,23 @@
+/**
+ * @typedef {import('nlcst').Paragraph} Paragraph
+ * @typedef {import('nlcst').Root} Root
+ */
+
+import {modifyChildren} from 'unist-util-modify-children'
+
+// Remove empty children.
+export const removeEmptyNodes = modifyChildren(
+  /**
+   * @type {import('unist-util-modify-children').Modifier<Paragraph | Root>}
+   */
+
+  function (child, index, parent) {
+    if ('children' in child && child.children.length === 0) {
+      parent.children.splice(index, 1)
+
+      // Next, iterate over the node *now* at the current position (which was the
+      // next node).
+      return index
+    }
+  }
+)